Optimal sparse polynomial chaos expansion for arbitrary probability distribution and its application on global sensitivity analysis

L Cao, J Liu, C Jiang, G Liu - Computer Methods in Applied Mechanics and …, 2022 - Elsevier
Polynomial chaos expansion has received considerable attention in uncertainty
quantification since its great modeling capability for complex systems. However, considering …

Surrogate model based uncertainty quantification of CFD simulations of the viscous flow around a ship advancing in shallow water

L Xia, ZJ Zou, ZH Wang, L Zou, H Gao - Ocean Engineering, 2021 - Elsevier
Abstract Usually, Computational Fluid Dynamics (CFD) simulations are carried out under
deterministic conditions. However, there are actually many uncertain factors such as fluid …

Surrogate approach to uncertainty quantification of neural networks for regression

M Kang, S Kang - Applied Soft Computing, 2023 - Elsevier
Uncertainty quantification is essential in preventing inaccurate predictions of neural
networks. A vanilla neural network for regression does not intrinsically provide explicit …

[HTML][HTML] Theoretical model of azimuthal combustion instability subject to non-trivial boundary conditions

QIN Lei, W Xiaoyu, G Zhang, SUN Xiaofeng - Chinese Journal of …, 2024 - Elsevier
The problem of evaluating the sensitivity of non-trivial boundary conditions to the onset of
azimuthal combustion instability is a longstanding challenge in the development process of …

[HTML][HTML] Non-intrusive uncertainty quantification in the simulation of turbulent spray combustion using polynomial chaos expansion: A case study

B Enderle, B Rauch, F Grimm, G Eckel, M Aigner - Combustion and Flame, 2020 - Elsevier
A major source of input uncertainties in the simulation of turbulent spray combustion is
introduced by the need to specify the state of the liquid spray after primary breakup, ie a …

A novel modal expansion method for low-order modeling of thermoacoustic instabilities in complex geometries

C Laurent, M Bauerheim, T Poinsot, F Nicoud - Combustion and Flame, 2019 - Elsevier
This work proposes an improvement to existing methods based on modal expansions used
for the prediction of thermoacoustic instabilities in zero Mach number flow conditions …

[HTML][HTML] Tunable passive control of thermoacoustic instabilities based on a variable geometry combustor outlet nozzle

A Blondé, B Schuermans, B Dharmaputra… - Aerospace Science and …, 2025 - Elsevier
This paper presents a tunable combustor outlet geometry, which enables control of
thermoacoustic instabilities. It is based on a water-cooled conical piston inserted in the outlet …

Quantification of the impact of uncertainties in operating conditions on the flame transfer function with nonintrusive polynomial chaos expansion

A Avdonin, W Polifke - Journal of Engineering for …, 2019 - asmedigitalcollection.asme.org
Nonintrusive polynomial chaos expansion (NIPCE) is used to quantify the impact of
uncertainties in operating conditions on the flame transfer function (FTF) of a premixed …

Uncertainty propagation of dam break flow using the stochastic non-intrusive B-splines Bézier elements-based method

A Abdedou, A Soulaïmani, GW Tchamen - Journal of Hydrology, 2020 - Elsevier
The non-intrusive B-splines Bézier elements method (BSBEM) is used to perform uncertainty
propagation for complex dam break flow models. The predictive efficiency of the BSBEM is …

[HTML][HTML] Thermoacoustic stability analysis and robust design of burner-deck-anchored flames using flame transfer function composition

HF Ganji, V Kornilov, J van Oijen, IL Arteaga… - Combustion and …, 2024 - Elsevier
Thermoacoustic instabilities in combustion systems are influenced by the thermoacoustic
properties, such as the transfer function (TF) of the burner with flame. One promising …